[all-commits] [llvm/llvm-project] 716ed5: [libc++] Undeprecate shared_ptr atomic access APIs...

[Nico Weber via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 716ed5fccd2a960981fec2c5acb17292a1502435
      https://github.com/llvm/llvm-project/commit/716ed5fccd2a960981fec2c5acb17292a1502435
  Author: Nico Weber <thakis at chromium.org>
  Date:   2024-06-07 (Fri, 07 Jun 2024)

  Changed paths:
    M libcxx/docs/ReleaseNotes/19.rst
    M libcxx/docs/Status/Cxx20.rst
    M libcxx/docs/Status/Cxx20Papers.csv
    M libcxx/docs/Status/Cxx2cPapers.csv
    M libcxx/docs/UsingLibcxx.rst
    M libcxx/include/__memory/shared_ptr.h
    M libcxx/include/memory
    M libcxx/modules/std/memory.inc
    R libcxx/test/libcxx/depr/depr.util.smartptr.shared.atomic/atomic_compare_exchange_strong.depr_in_cxx20..verify.cpp
    R libcxx/test/libcxx/depr/depr.util.smartptr.shared.atomic/atomic_compare_exchange_strong_explicit.depr_in_cxx20.verify.cpp
    R libcxx/test/libcxx/depr/depr.util.smartptr.shared.atomic/atomic_compare_exchange_weak.depr_in_cxx20..verify.cpp
    R libcxx/test/libcxx/depr/depr.util.smartptr.shared.atomic/atomic_compare_exchange_weak_explicit.depr_in_cxx20..verify.cpp
    R libcxx/test/libcxx/depr/depr.util.smartptr.shared.atomic/atomic_exchange.depr_in_cxx20..verify.cpp
    R libcxx/test/libcxx/depr/depr.util.smartptr.shared.atomic/atomic_exchange_explicit.verify.depr_in_cxx20..cpp
    R libcxx/test/libcxx/depr/depr.util.smartptr.shared.atomic/atomic_is_lock_free.depr_in_cxx20..verify.cpp
    R libcxx/test/libcxx/depr/depr.util.smartptr.shared.atomic/atomic_load.depr_in_cxx20..verify.cpp
    R libcxx/test/libcxx/depr/depr.util.smartptr.shared.atomic/atomic_load_explicit.depr_in_cxx20..verify.cpp
    R libcxx/test/libcxx/depr/depr.util.smartptr.shared.atomic/atomic_store.depr_in_cxx20..verify.cpp
    R libcxx/test/libcxx/depr/depr.util.smartptr.shared.atomic/atomic_store_explicit.depr_in_cxx20..verify.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_compare_exchange_strong.pass.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_compare_exchange_strong_explicit.pass.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_compare_exchange_weak.pass.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_compare_exchange_weak_explicit.pass.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_exchange.pass.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_exchange_explicit.pass.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_is_lock_free.pass.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_load.pass.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_load_explicit.pass.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_store.pass.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared.atomic/atomic_store_explicit.pass.cpp

  Log Message:
  -----------
  [libc++] Undeprecate shared_ptr atomic access APIs (#92920)

This patch reverts 9b832b72 (#87111):
- [libc++] Deprecated `shared_ptr` Atomic Access APIs as per P0718R2
- [libc++] Implemented P2869R3: Remove Deprecated `shared_ptr` Atomic Access APIs from C++26

As explained in [1], the suggested replacement in P2869R3 is `__cpp_lib_atomic_shared_ptr`,
which libc++ does not yet implement. Let's not deprecate the old way of doing things before
the new way of doing things exists.

[1]: https://github.com/llvm/llvm-project/pull/87111#issuecomment-2112740039



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